Ax.



A Patented Jan. I, |90I. H. S. EABLE.

l No. 665,075'.

(Application led July 30, 1900.)

(nu maar.)

,- 1N VEA/T03.

WITNESSES UNITEDV STATES PATENT OFFICE.

HORATIO S. EARLE, OF DETROIT, MICHIGAN.

SPECIFICATION forming part of Letters Patent No. 665,075, dated January 1, 1901.

Application filed July 30, 1900. Serial No. 25,222. (No model.)

To all whom, t may concern:

Be it known that I, HoRATio S. EARLE, a citizen of the United States, residing at Detroit, in the county of Wayne, State of Michigan, have invented certain new and useful Improvements in Axes; and I do-declare the following to be a full, clear, and exact description of theinvention,such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification. .v

This invention relates to axes; and it consists in the construction and arrangement of parts hereinafter fully set forth, and pointed out particularly in the claims.

The object of the invention is to provide an axin which the arrangement is such as to enable the bit to be readily attached to and detached from the poll of the ax, whereby when a bit becomes worn or broken it may be replaced, thereby rendering the ax as good as new at the expense only of the cost of the bit.

The above object is attained by the association of parts illustrated in the accompanying drawings, in which- Figure lis a side elevation of an ax embodying my invention.l Fig. 2 is a central longitudinal section on line 2 2 of Fig. 1. Fig. 3 is a view of one of the component members of the poll, showing a side elevation and an edge view thereof. Fig. 4 is a longitudinal section through the poll and bit of the ax in a plane parallel with the sides thereof. Fig. 5

is an elevation of the bit removed from the poll.

Referring to the characters of reference, 1 designates the bit, provided with the usual cutting ends 2. Formed in the opposite edges of the bit are the recesses 3, extending inwardly and downwardly and describing the arc of acircle whose axis is at the geometrical center of the recess. Extending lbetween the inner terminals of said recesses and rising above said terminals in the arc of a circle is the central rounded portion 4, the curve of whose arc bisects the axis ofsaid recesses. Traversing the 'contour of said recesses and said central rounded portion is a tongue 5, which is of less diameter than the width of the bit and projects centrally from the upper edge thereof, forming at the base of said tongue, on each side, a lateral shoulder-6, which conforms tothe contour of the upper edge of the bit.

The poll of the ax is divided transversely through its center, forming two independent detachable parts 7, each having a portion of the eye 8 therein, so that when said parts are placed together to com plete the poll they eect Aa continuity of the eye therethrough, which receives the helve of the ax. The lower edge of each of' the partsof the poll conforms to the contour of the upper edge of the bit, each being provided with an inwardly-projecting circular ear 9, adaptedr to lie in the corresponding recess in the edge of the bit, and with a curved portion 10, adapted to conform to the rounded part 4 when placed upon the bit, as shown in Fig. 1. The lower edges of the parts 7 of the poll are provided with a central channel 11 (see Fig. 3,) which is adapted to receive the central tongue 5 of the bit. The parts of the poll are placed upon the bit from the opposite sides, the ears 9 entering the recesses 3 of the bit at about the angle indicated by dotted lines in Fig. 5, so that the upper ends of the divided poll will stand apart, as shown by dotted lines in Fig. 1, when by forcing the upper ends of the two parts of the poll together said parts become locked to the bit of the ax in a manner to securely attach the bit thereto. As the upper ends of the opposed members of thepoll are brought together the ears 9 thereof turn within the recesses 3 of the bit and allow the curved portions 10 thereof to close upon the rounded portion 4 of the bit lying between said recesses, the margin of thev members of the poll being brought into contact with the shoulder 6 of the bit, whereby said bit becomes rmly bound between the c'losed halves of the poll and said parts lock together, so as to effect a continuity o`f the bit and poll and make a smooth joint between them. To secure the parts of the poll in place after being brought together upon the bit, a bolt 12 is ypassed through the head portion 13 of said parts, whereby they are firmly maintained in place, the head of the bolt lying in a recess 14 in one part of the poll and the nut 15 on said bolt lying in a recess 16 in the other part, thereby concealing the bolt and nut and re- IOO lieving the head of the ax from any undesirable projections.

Having thus fully set forth my invention, What I claixn as new, and desire to secure by Letters Patent, is-

l. An ax having abit provided With circu lar recesses formed obliqnely therein and a projecting tongue, a two-part poll divided transversely of the eye, each part being recessed to receive said tongue and having a projecting ear adapted to engage and lock in said recesses respectively as the parts of the poll are brought together and means for locking the two parts of the poll.

2. In an ax, the combination of a detachable bit having undercut recesses in its opposite edges, a two-part poll divided transversely of the eye, each part havinga projecting ear, or lug, adapted to engage in the recesses re spectively of the bit and to lock the parts of the poll to the bit as said parts are drawn together and means for locking the parts of the poll when brought into engagement.

3. In an ax, the combination of a detachable bit, a tivo-part poll divided transversely of the eye and adapted to close upon and embrace the bit from opposite edges said bit and the parts of said poll having engaging members which automatically lock the poll to the bit as the parts of the poll are brought together.

4. In an ax, the combination of a detachabie bit, a twcspart poll divided transversely of the eye, the bit and parts of the poll having interlocking members which automatically unite the poll and bit as the parts of the poll are brought together and a bolt passing through the parts of the poll parallel with the eye for securing said parts.

In testimony whereof I sign this specifica@ 4o tion in the presence of two Witnesses.

HORATIO S. EARLE.

Witnesses:

E. S. WHEELER, C. EDNA JosLIN. 

